Radar System Performance Modeling, Second Edition

E.6: Chapter 6 Problems

E.6 Chapter 6 Problems

1.

What is the threshold level relative to the system noise level that gives P FA = 10 ?6 for detection using a single pulse or coherent integration?

2.

What are the false-alarm rate and average time between false alarms for a radar having a signal bandwidth of 2 MHz and a P FA of 10 ?8, assuming continuous receiver operation? If a range window of 10 km is observed at a PRF of 500, what P FA will produce the same false-alarm rate?

3.

What single-pulse S/N is needed to provide P D = 0.9 and P FA = 10 ?6 for Swerling 1, 2, 3, 4, and 5 targets? If 20 pulses are coherently integrated, what is the single-pulse S/N needed to give the above results for Swerling 1, 3, and 5 targets?

4.

How many pulses having S/N = 10 dB must be noncoherently integrated to give P D = 0.9 and P FA = 10 ?6 for Swerling 1, 2, 3, 4, and 5 targets? How many such pulses must be used in cumulative detection to give the same detection performance for Swerling 2, 4, and 5 targets?

5.

For a Swerling 1 target, what is the single-pulse S/N needed when 10 pulses are coherently integrated to provide P D = 0.99 and P FA = 10 ?6? If frequency diversity is used to produce Swerling 2 fluctuations...

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